Asagi
The Asagi koi is one of the oldest varieties of koi and has provided the basis for many subsequent varieties. Its back is covered in a net-like reticulated scale pattern of indigo, navy blue or pale blue. The light blue head should be clear and unblemished. The base of the pectoral fins, tail fin, stomach and gill plates is a deep orange or red color.
The scales on the back have whitish base and thus collectively give an appearance of meshes of a net.
The important viewing points are conspicuously vivid appearance of the meshes and light blue, spotless head region. However, as they age, black spots often appear in the head region and Hi (red) on the belly tend to climb up reaching as far as the back.